GRE Problem Solving Question 262
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Source: 150math
For a certain distribution, the measurement 12.1 is 1.5 standard deviations below the mean, and the measurement 17.5 is 3.0 standard deviations above the mean. What is the mean of the distribution?
- A 13.8
- B 13.9
- C 14
- D 14.1
- E 14.2